Wondering why that MOD you have won't install correctly? Let's take a look
Forum rules DO NOT give out any FTP passwords to anyone! There is no reason to do so! If you need help badly enough, create a temporary FTP account that is restricted to only the files that you need help with and give the information for that. Giving out FTP information can be very dangerous!
Those files need to be moved from the attach_mod folder, to the Language folder.
So, these files are located in the attach_mod/root/language/lang_english directory of the attach_mod folder. They need to be copied to the language/lang_english folder which is located in your phpbb directory.
Atleast I'm pretty sure that's what it means. Althought I did this install and everything installed fine. My forum has a fatal error now and will not load. I posted the exact problem a few threads above this one.